Leviticus 21:17

Whosoever - hath any blemish, let him not approach to offer the bread of his God - Never was a wiser, a more rational, and a more expedient law enacted relative to sacred matters. The man who ministers in holy things, who professes to be the interpreter of the will of God, should have nothing in his person nor in his manner which cannot contribute to render him respectable in the eyes of those to whom he ministers. If, on the contrary, he has any personal defect, any thing that may render him contemptible or despicable, his usefulness will be greatly injured, if not entirely prevented. If however a man have received any damage in the work of God, by persecution or otherwise, his scars are honorable, and will add to his respectability. But if he be received into the ministry with any of the blemishes specified here, he never will and never can have that respect which is essentially necessary to secure his usefulness. Let no man say this is a part of the Mosaic law, and we are not bound by it. It is an eternal law, founded on reason, propriety, common sense, and absolute necessity. The priest, the prophet, the Christian minister, is the representative of Jesus Christ; let nothing in his person, carriage, or doctrine, be unworthy of the personage he represents. A deformed person, though consummate in diplomatic wisdom, would never be employed as an ambassador by any enlightened court, if any fit person, unblemished, could possibly be procured.

21:17 Of thy seed - Whether the high priest, or the inferior ones.That hath - In all successive ages, any defect or excess of parts, any notorious deformity or imperfection in his body. The reason hereof is partly typical, that he, might more fully represent Christ, the great high - priest, who was typified both by the priest and sacrifice, and therefore both were to be without blemish; partly moral, to teach all Christians and especially ministers of holy things, what purity and perfection of heart and life they should labour after, and that notorious blemishes in the mind or conversation, render a man unfit for the ministry of the gospel; and partly prudential, because such blemishes were apt to breed contempt of the person; and consequently, of his function, and of the holy things wherein he ministered. For which reason, such persons as have notorious defects or deformities, are still unfit for the ministry except where there are eminent gifts and graces, which vindicate a man from the contemptibleness of his bodily presence. The particular defect's here mentioned, I shall not enlarge upon because some of the Hebrew words are diversely interpreted, and because the use of these things being abolished, the knowledge of them is not necessary.